diff --git a/es2panda/parser/parserImpl.cpp b/es2panda/parser/parserImpl.cpp
index 905f1a5ed14f802265c847e3f5ace3735b0fb462..3094b02cc5332c6042e6168e7909e8f9783e6b9a 100644
--- a/es2panda/parser/parserImpl.cpp
+++ b/es2panda/parser/parserImpl.cpp
@@ -2703,7 +2703,8 @@ ir::ClassDefinition *ParserImpl::ParseClassDefinition(bool isDeclaration, bool i
 
     auto classCtx = binder::LexicalScope<binder::LocalScope>(Binder());
 
-    if (lexer_->GetToken().Type() == lexer::TokenType::LITERAL_IDENT) {
+    if (lexer_->GetToken().Type() == lexer::TokenType::LITERAL_IDENT && (Extension() != ScriptExtension::TS ||
+        lexer_->GetToken().KeywordType() != lexer::TokenType::KEYW_IMPLEMENTS)) {
         identNode = SetIdentNodeInClassDefinition();
     } else if (isDeclaration && idRequired) {
         ThrowSyntaxError("Unexpected token, expected an identifier.");
diff --git a/es2panda/test/parser/ts/test-class-definiton21-expected.txt b/es2panda/test/parser/ts/test-class-definiton21-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..0b95295e35eded85b7833a53e7717d3d51773be2
--- /dev/null
+++ b/es2panda/test/parser/ts/test-class-definiton21-expected.txt
@@ -0,0 +1,321 @@
+{
+  "type": "Program",
+  "statements": [
+    {
+      "type": "ClassDeclaration",
+      "definition": {
+        "id": {
+          "type": "Identifier",
+          "name": "A",
+          "decorators": [],
+          "loc": {
+            "start": {
+              "line": 17,
+              "column": 7
+            },
+            "end": {
+              "line": 17,
+              "column": 8
+            }
+          }
+        },
+        "superClass": null,
+        "implements": [],
+        "constructor": {
+          "type": "MethodDefinition",
+          "key": {
+            "type": "Identifier",
+            "name": "constructor",
+            "decorators": [],
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 1
+              },
+              "end": {
+                "line": 1,
+                "column": 1
+              }
+            }
+          },
+          "kind": "constructor",
+          "static": false,
+          "optional": false,
+          "computed": false,
+          "value": {
+            "type": "FunctionExpression",
+            "function": {
+              "type": "ScriptFunction",
+              "id": null,
+              "generator": false,
+              "async": false,
+              "expression": false,
+              "params": [],
+              "body": {
+                "type": "BlockStatement",
+                "statements": [],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 1
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 1
+                  }
+                }
+              },
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 1
+                },
+                "end": {
+                  "line": 1,
+                  "column": 1
+                }
+              }
+            },
+            "loc": {
+              "start": {
+                "line": 1,
+                "column": 1
+              },
+              "end": {
+                "line": 1,
+                "column": 1
+              }
+            }
+          },
+          "overloads": [],
+          "decorators": [],
+          "loc": {
+            "start": {
+              "line": 17,
+              "column": 1
+            },
+            "end": {
+              "line": 17,
+              "column": 10
+            }
+          }
+        },
+        "body": [],
+        "indexSignatures": [],
+        "loc": {
+          "start": {
+            "line": 17,
+            "column": 8
+          },
+          "end": {
+            "line": 17,
+            "column": 10
+          }
+        }
+      },
+      "decorators": [],
+      "loc": {
+        "start": {
+          "line": 17,
+          "column": 1
+        },
+        "end": {
+          "line": 17,
+          "column": 10
+        }
+      }
+    },
+    {
+      "type": "VariableDeclaration",
+      "declarations": [
+        {
+          "type": "VariableDeclarator",
+          "id": {
+            "type": "Identifier",
+            "name": "a",
+            "decorators": [],
+            "loc": {
+              "start": {
+                "line": 18,
+                "column": 5
+              },
+              "end": {
+                "line": 18,
+                "column": 6
+              }
+            }
+          },
+          "init": {
+            "type": "ClassExpression",
+            "definition": {
+              "id": null,
+              "superClass": null,
+              "implements": [
+                {
+                  "type": "TSClassImplements",
+                  "expression": {
+                    "type": "Identifier",
+                    "name": "A",
+                    "decorators": [],
+                    "loc": {
+                      "start": {
+                        "line": 18,
+                        "column": 26
+                      },
+                      "end": {
+                        "line": 18,
+                        "column": 27
+                      }
+                    }
+                  },
+                  "loc": {
+                    "start": {
+                      "line": 18,
+                      "column": 26
+                    },
+                    "end": {
+                      "line": 18,
+                      "column": 28
+                    }
+                  }
+                }
+              ],
+              "constructor": {
+                "type": "MethodDefinition",
+                "key": {
+                  "type": "Identifier",
+                  "name": "constructor",
+                  "decorators": [],
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 1
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 1
+                    }
+                  }
+                },
+                "kind": "constructor",
+                "static": false,
+                "optional": false,
+                "computed": false,
+                "value": {
+                  "type": "FunctionExpression",
+                  "function": {
+                    "type": "ScriptFunction",
+                    "id": null,
+                    "generator": false,
+                    "async": false,
+                    "expression": false,
+                    "params": [],
+                    "body": {
+                      "type": "BlockStatement",
+                      "statements": [],
+                      "loc": {
+                        "start": {
+                          "line": 1,
+                          "column": 1
+                        },
+                        "end": {
+                          "line": 1,
+                          "column": 1
+                        }
+                      }
+                    },
+                    "loc": {
+                      "start": {
+                        "line": 1,
+                        "column": 1
+                      },
+                      "end": {
+                        "line": 1,
+                        "column": 1
+                      }
+                    }
+                  },
+                  "loc": {
+                    "start": {
+                      "line": 1,
+                      "column": 1
+                    },
+                    "end": {
+                      "line": 1,
+                      "column": 1
+                    }
+                  }
+                },
+                "overloads": [],
+                "decorators": [],
+                "loc": {
+                  "start": {
+                    "line": 18,
+                    "column": 9
+                  },
+                  "end": {
+                    "line": 18,
+                    "column": 29
+                  }
+                }
+              },
+              "body": [],
+              "indexSignatures": [],
+              "loc": {
+                "start": {
+                  "line": 18,
+                  "column": 27
+                },
+                "end": {
+                  "line": 18,
+                  "column": 29
+                }
+              }
+            },
+            "loc": {
+              "start": {
+                "line": 18,
+                "column": 9
+              },
+              "end": {
+                "line": 18,
+                "column": 29
+              }
+            }
+          },
+          "loc": {
+            "start": {
+              "line": 18,
+              "column": 5
+            },
+            "end": {
+              "line": 18,
+              "column": 29
+            }
+          }
+        }
+      ],
+      "kind": "var",
+      "loc": {
+        "start": {
+          "line": 18,
+          "column": 1
+        },
+        "end": {
+          "line": 18,
+          "column": 29
+        }
+      }
+    }
+  ],
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 1
+    },
+    "end": {
+      "line": 19,
+      "column": 1
+    }
+  }
+}
diff --git a/es2panda/test/parser/ts/test-class-definiton21.ts b/es2panda/test/parser/ts/test-class-definiton21.ts
new file mode 100644
index 0000000000000000000000000000000000000000..f4c2ca700780b1ddc73482d3464bbf03987cf578
--- /dev/null
+++ b/es2panda/test/parser/ts/test-class-definiton21.ts
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+class A{}
+var a = class implements A{}
diff --git a/es2panda/test/test_tsc_ignore_list.txt b/es2panda/test/test_tsc_ignore_list.txt
index 7212fc2461f3b90226c35679950b4db2d6d10551..14145dbad79d756779c63c86bf1b8d06fcb9c58a 100644
--- a/es2panda/test/test_tsc_ignore_list.txt
+++ b/es2panda/test/test_tsc_ignore_list.txt
@@ -15,7 +15,6 @@ es2panda/test/TypeScript/tests/cases/compiler/exportRedeclarationTypeAliases.ts
 es2panda/test/TypeScript/tests/cases/compiler/fileWithNextLine2.ts
 es2panda/test/TypeScript/tests/cases/compiler/genericRecursiveImplicitConstructorErrors2.ts
 es2panda/test/TypeScript/tests/cases/compiler/globalIsContextualKeyword.ts
-es2panda/test/TypeScript/tests/cases/compiler/implementsInClassExpression.ts
 es2panda/test/TypeScript/tests/cases/compiler/inferenceErasedSignatures.ts
 es2panda/test/TypeScript/tests/cases/compiler/isLiteral1.ts
 es2panda/test/TypeScript/tests/cases/compiler/noCircularDefinitionOnExportOfPrivateInMergedNamespace.ts